/*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#include "it_mlock_test.h"

#define MALLOCK_SIZE            (12 * 1024)
#define MEMLOCK_LIMIT           (12 * 1024)

static int Testcase(void)
{
    int ret =0;
    int lockPages;
    int lockSize = PAGE_SIZE + 1;
    struct rlimit rlim = {MEMLOCK_LIMIT, MEMLOCK_LIMIT};

    ret = setrlimit(RLIMIT_MEMLOCK, &rlim);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    ret = mlockall(MCL_CURRENT);
    ICUNIT_ASSERT_EQUAL(errno, ENOMEM, errno);

    int num = ReadVmLckCount();
    ICUNIT_ASSERT_EQUAL(num, 0, num);

    ret = munlockall();
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    num = ReadVmLckCount();
    ICUNIT_ASSERT_EQUAL(num, 0, num);

    ret = mlockall(MCL_FUTURE);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    void *map = mmap(NULL, MALLOCK_SIZE, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
    ICUNIT_ASSERT_NOT_EQUAL(map, NULL, map);

    num = ReadVmLckCount();
    ICUNIT_ASSERT_EQUAL(num, MALLOCK_SIZE >> PAGE_SHIFT, num);

    ret = munmap(map, MALLOCK_SIZE);
    ICUNIT_ASSERT_EQUAL(ret, 0, ret);

    num = ReadVmLckCount();
    ICUNIT_ASSERT_EQUAL(num, 0, num);

    // test rlimit
    (void)mmap(NULL, MEMLOCK_LIMIT + PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
    ICUNIT_ASSERT_EQUAL(errno, ENOMEM, errno);

    return 0;
}

void ItTestMlock002(void)
{
    TEST_ADD_CASE("IT_POSIX_MLOCK_002", Testcase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
}
